Joist-supporting stirrup



Feb. 23 1926.

H. KUFFMAN JOIST SUPPORTING STIRRUP Filed March 12 1925 Patented Feb. 23, 1926.

UNIT TTQ PATENT FHCE.

HENRY KAUFFMAN, DECEASED, LATE OF SEATTLE, W'ASHINGTON; BY MINETTE R. KAUFFMAN, ADlfINSTRATRIX, OF SEATTLE, iVAsHNGToN.

JOST-SPPORTING STIRRUP.

Application filed. March 12, 1925.

VTo all whom t may concern:

Vcitizen of the United States, late residing at said Seattle, and who was the inventor ci certain new and useful Improvements in JoistsSupporting Stirrups; and I do hereby declare the following` to be a full, clear, and exact description oi' the said invention.

rlhis invention relates to stirrups such used for connecting'joists and beams oi' 'licor frames in' building structures.

The object oimy invention is to provide an inexpensively constructed stirrup oil' this character which will be oi light weight, strong and rigid and afford an etlicient connection between the timbers of floor traming.

ther objects and advantages of the in vention will appear in the following specifi cation. p

The invention consists in the novel con-- struction, adaptation and combination ci parts, hereinafter described and claimed.

In the accompanying drawingf-r Figure 1 is a front elevation of a joist stirrup embodying the invention. Fig. 2 is a rear elevation of the same. F ig. 3 is a y Vplan View of a portion of a floor frame with the improved stirrups applied thereto. Figs. 4 and 5 are vertical sectional views through 4 4 and 5-5 of Fig. 3. Fig. 6 is a side elevation of a modilied form ot the invention.

In carrying out the invention there are provided two substantially U-shaped hangers, indicated generally by A and B in Figs. 1 and 2, constructed or' angle bars which are each formed to provide a horizontal central portion 10 depending from parallel side portions 11 and 12.

The web elements 101, 11l and 121 of said hangers are disposed in a vertical plane and the flange elements 102, 112, and 122 protrude forwardly therefrom. Two of said hangers are disposed side by side to have the flange elements 112 juxtaposed wit-h each other and i the hangers are rigidly secured, as by rivets 13, to the back of a horizontally disposed. coupling bar, such as a channel bar 14 or, as shown in Fig. 6, to spaced horizontal angle bars 14l and 142.

Serial No, 14,882.

A. coupling bar is oi greater length than the combined widths ot the associated hang4 ers and in each of the protruding bar ends 15 is provided an aperture 16. To apply the above described stirrup, a iloor beam as G0 1? Si, 4 und is recessed to receive therein a coupling bar 14 so that the back surface 1S, Figs. 4 and 5, oi the hanger members of a stirrup will bear against the adjacent side 19 of the beam.

The beam recess for the bar 14 is, moreover, `formed to provide seating surfaces 20 and 21 for the bar lianges 22 and whereby the weight oi" the stirrup and the load carried thereby is directly supported by the beam to which it is secured by bolts 24 extending therethrough and the respective apertures 16.

By arranging two hanger members in side by side relations the two flanges 11L furnish 'l5 a central rib of twice the tensile strength of the flange 122 at each side ot the stirrup which is advantageous where the joists, as 25 or 2G, have to carry heavy loads.

Where twin joists as 25, see F ig. 3, are B0 used such central rib, comprising flanges 112, also serves to space the companion joists.

lVhere a single joist, as 2G at the right hand side oit Fig. 3, is to be supported by a stirrup, a vertical groove 27 is provided in 35 Vthe end ot the joist to accommodate the liange 112.

The stirrups are desirably constructed o1 steel bars of standard shapes.

From the foregoing description the advantage of the construction and manner et applying the invention will be readily apparent; and while the preferred embodiment of the invention is illustrated and described, changes may be made therefrom within the scope of the following claims.

TVhat is claimed is,-

1. in a joist supporting stirrup, the co1nbination of two substantially U-shaped hangers formed of angle-bars, a horizontally disposed channel bar secured to said hangers to rigidly couple the same in side-by-side' relations, said channel bar being arranged to have the flange elements thereof extend rearwardly of the hangers and adapted to seat within recesses provided within a supporting beam.

2. ri joist supporting stirrup comprising apair of Ueshaped hanger members formed of angle bars arranged in sidebyside rc- 110 lations to afford a vertical flange at each side of the pair of hangers and two vertical flanges at the midwidth of the pair of hangers7 and a horizontally disposed couplingbar arranged transverselj,Y of the stirrup and rigidly secured to both of the hangers, said coupling-bar being of greater length 'than the combined Width of the hanger members and adapted to seat upon a beam-Within a recess provided for the coupling-bar therein.

3. A joist supporting stirrup comprising a horizontal channel-bar provided with rearwardly extending flange elements adapted to engage upon seating surfaees provided therefor in a beam and tivo hanger members formed of angle-bars vrigid With said channel-bar, said angle-bars having their flange elements extending forwardly.

4. A joist supporting stirrup comprising a pair of hanger members formed to subf stantiallT U-shapes and with forwardly tending flanges which are arranged to provide a horizontal seat for a joist end and a vertical rib at about the inidwidth of the stirrup, and a horizontall7 disposed Channel bar of greater length than the combined Widths of said hangers, said channel bar being rigidly secured to the backs of said hangers and having its flanges extend rearwardly to proif'ide two bearings adapted to seat upon supports provided therefor in a floor beam. Y

MINETTE n. KAUFFMAN, Aclmz'mstmrw of the Estate of Henry Y Kauffman, Deeeasecl. 

